ZorixOS
37+ Turing questions

Turing interview questions and how to prepare

The questions candidates report from Turing interviews, sorted by how often they come up, with difficulty and topics, plus original practice written in Turing's interview style.

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ZorixOS tracks 37 community-reported Turing interview questions, drawn from an open-source dataset of real interview reports and sorted by how frequently each one comes up. Every question links to its source. Alongside them are 78 original ZorixOS practice questions written in Turing's known interview style (not claimed as asked at Turing), so you can rehearse the real format. Practice any of them out loud in a free AI mock interview tuned to Turing.

Updated July 2026

Turing interview questions candidates report

Community-reported from real Turing interviews (open-source dataset), most-asked first. Showing 37. Each links to its source.

  1. Longest Arithmetic Subsequence
    ArrayHash TableBinary SearchDynamic Programming
    Medium100% asked
  2. Longest Substring Without Repeating Characters
    Hash TableStringSliding Window
    Medium100% asked
  3. Minimum Adjacent Swaps for K Consecutive Ones
    ArrayGreedySliding WindowPrefix Sum
    Hard100% asked
  4. Valid Parentheses
    StringStack
    Easy94% asked
  5. Validate IP Address
    String
    Medium93% asked
  6. Minimum Cost For Tickets
    ArrayDynamic Programming
    Medium87% asked
  7. Koko Eating Bananas
    ArrayBinary Search
    Medium84% asked
  8. Non-decreasing Array
    Array
    Medium82% asked
  9. Ugly Number II
    Hash TableMathDynamic ProgrammingHeap (Priority Queue)
    Medium82% asked
  10. Baseball Game
    ArrayStackSimulation
    Easy78% asked
  11. Minimum Length of Anagram Concatenation
    Hash TableStringCounting
    Medium78% asked
  12. Apply Operations to Make Sum of Array Greater Than or Equal to k
    MathGreedyEnumeration
    Medium69% asked
  13. Longest Palindromic Substring
    Two PointersStringDynamic Programming
    Medium69% asked
  14. Minimum Number of Operations to Satisfy Conditions
    ArrayDynamic ProgrammingMatrix
    Medium67% asked
  15. Best Time to Buy and Sell Stock
    ArrayDynamic Programming
    Easy62% asked
  16. Longest Common Prefix
    ArrayStringTrie
    Easy62% asked
  17. Two Sum
    ArrayHash Table
    Easy62% asked
  18. Number of Islands
    ArrayDepth-First SearchBreadth-First SearchUnion-Find
    Medium61% asked
  19. 3Sum
    ArrayTwo PointersSorting
    Medium53% asked
  20. Count Square Sum Triples
    MathEnumeration
    Easy53% asked
  21. Find First and Last Position of Element in Sorted Array
    ArrayBinary Search
    Medium53% asked
  22. Find the Town Judge
    ArrayHash TableGraph Theory
    Easy53% asked
  23. Group Anagrams
    ArrayHash TableStringSorting
    Medium53% asked
  24. Jump Game
    ArrayDynamic ProgrammingGreedy
    Medium53% asked
  25. K Divisible Elements Subarrays
    ArrayHash TableTrieRolling Hash
    Medium53% asked
  26. Kth Largest Element in an Array
    ArrayDivide and ConquerSortingHeap (Priority Queue)
    Medium53% asked
  27. Maximum Repeating Substring
    StringDynamic ProgrammingString Matching
    Easy53% asked
  28. Maximum Subarray
    ArrayDivide and ConquerDynamic Programming
    Medium53% asked
  29. Median of Two Sorted Arrays
    ArrayBinary SearchDivide and Conquer
    Hard53% asked
  30. Merge Intervals
    ArraySorting
    Medium53% asked
  31. Minimum Number of Operations to Make Word K-Periodic
    Hash TableStringCounting
    Medium53% asked
  32. Partition Array Into Three Parts With Equal Sum
    ArrayGreedy
    Easy53% asked
  33. Product of Array Except Self
    ArrayPrefix Sum
    Medium53% asked
  34. Race Car
    Dynamic Programming
    Hard53% asked
  35. Sum of Digit Differences of All Pairs
    ArrayHash TableMathCounting
    Medium53% asked
  36. Degree of an Array
    ArrayHash Table
    Easy52% asked
  37. Minimum Cost Walk in Weighted Graph
    ArrayBit ManipulationUnion-FindGraph Theory
    Hard52% asked

Practice questions in Turing's style

Original ZorixOS questions written the way Turing interviews, so you rehearse the real format. Not claimed as asked at Turing.

  1. Imagine Turing is experiencing a sudden surge in developer sign ups. Describe how you would design a system to handle this influx, focusing on the challenges of matching developers to opportunities at scale and ensuring a smooth user experience for both parties. What potential bottlenecks do you foresee?

    Software EngineerSystem DesignTests: Evaluates ability to design scalable systems and anticipate technical challenges in a high growth scenario relevant to Turing's core business.

  2. Turing's platform connects remote developers with companies. How would you design a real-time communication system between developers and hiring managers that is robust, scalable, and provides features like message history, presence indicators, and potentially code snippet sharing? Consider the technologies you might use and why.

    Software EngineerSystem DesignTests: Assesses system design skills focusing on real-time features and communication infrastructure applicable to Turing's user interactions.

  3. A critical bug is reported where developers are not receiving interview invitations despite being matched. How would you debug this issue in a distributed system like Turing's, considering potential failure points in matchmaking, notification services, and user status updates?

    Software EngineerDebuggingTests: Tests debugging methodology and problem-solving skills in a complex, distributed environment.

  4. Turing's marketplace relies on efficient matching algorithms. If the current algorithm is producing a high number of mismatches (developers not getting interviews or jobs they are qualified for), how would you approach identifying the root cause and proposing improvements? Discuss data points you'd look at and potential algorithmic changes.

    Software EngineerCoding ReasoningTests: Probes algorithmic thinking, data analysis for performance tuning, and problem-solving related to core platform functionality.

  5. Describe the architecture of Turing's developer profile system. How would you ensure data consistency and efficient retrieval of developer skills, experience, and availability across potentially millions of profiles?

    Software EngineerSystem DesignTests: Evaluates understanding of data management, consistency, and performance in large-scale user profile systems.

  6. How would you design a system to handle the scale of Turing's global operations, considering factors like time zones, different skill demands in various regions, and potential regional compliance requirements for hiring?

    Software EngineerSystem DesignTests: Tests ability to design for global scale, considering operational and geographical complexities.

72+ more Turing-style questions are in the free library, each practiceable live with adaptive follow-ups and an honest scorecard. Start free.

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Turing Interview Questions (2026) | ZorixOS